Can't save some nodes after updating to 8.x-1.4

The issue relates to updating from 8.x-1.3 to 1.4 so I don't think asking for testing at 2.x will show up anything. I recall that there were some changes to the state dropdowns between 1.3 and 1.4 so maybe we do need a hook_update to fix any old data which is now not valid.

Needs more investigation.

@cgmonroe's description seems like the same issue a client just encountered. Was running 8.x.1.4. Tried 2.x but it had the same issue. Downgrading to 8.x.1.3 resolved the issue.

Okay FINALLY was able to recreate

Add workflow to Article content type
Turn on scheduler
Remove draft to published transition
Remove article from workflow

Now try and create an Article
Will see the scheduler (as expected)
Won't see publish_state (as expeded)
But clicking save triggers the error.

So fixed this by adding some code that when the workflow is saved it should recheck the forms and update.

I found that the #3135341 issue introduced the problem in 1.4.
There is a quick fix until this won't be fixed. Probably the default option was removed with good reason.

@smustgrave in #10 your Steps to Reproduce may have found a problem, that we need to update the form displays when the workflow is edited, but I think that is separate from this issue. This issue is all about the change from 8.x-1.3 to 1.4 when the '_none' option was removed. I will raise a new issue for the problem you have found, and we can work on that separately.

Since we don't have 8.x-1.x marked supported can we confirm this is an issue in 2.x and/or 3.0.x?

If still an issue on 2.0.x or more importantly 3.0.x please reopen.